diff --git a/src/util/bitset.h b/src/util/bitset.h
index 75e29a9a519..adafc72a5f7 100644
--- a/src/util/bitset.h
+++ b/src/util/bitset.h
@@ -32,6 +32,7 @@
 #define BITSET_H
 
 #include "util/bitscan.h"
+#include "util/macros.h"
 
 /****************************************************************************
  * generic bitset implementation